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医原性脊髄硬膜外血腫11症例の臨床成績を検討した.脊椎手術による発症6例,ブロックによる発症5例であった.前者の全例が下肢症状,後者の多くが穿刺局所部痛で発症した.9例は6時間以内の発症であったが,抗凝固薬服薬例2例は遅発性に発症した.手術群の多くは血腫除去手術を要し,ブロック群の多くは経過観察で軽快した.2例の麻痺が残存した.医療行為による硬膜外血腫の発生を皆無にすることはできないため注意を要する.
This study examined the clinical features of iatrogenic spinal epidural hematoma that occurred as a complication of spinal surgery (operation group) or an epidural block (block group). About half of patients were being treated with an anticoagulant, and the occurrence of the hematoma was delayed in these cases. Reoperation was performed in 80% of the cases in the operation group, but spontaneous healing occurred in 80% of the cases in the block group. Although iatrogenic spinal epidural hematomas are uncommon, they occur at a constant frequency, and in some cases the sequelae are serious. Therefore, sufficient informed consent, preventive measures, and early detection are necessary in spinal surgery and epidural block cases.
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